1308 接触面温度が潤滑油の耐荷重能に及ぼす影響(GS-11 トライボロジ(1),研究発表講演)

概要

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Using a rotating friction tester of ball-on-disk type, influence of surface temperature on the boundary lubrication characteristics of mineral lubricating oils was examined. The tester consists of a ball and a disk installed an electric heater to control its surface temperature. The sliding speed was slowed down to minimize the frictional heating as well as hydrodynamic pressure generation between the ball and disk. In this paper, the critical temperature yielding the growth of friction coefficient was examined for paraffinic-naphthenic base oils with and without fatty acid oiliness agents. The results can be summarized as follows; 1) the critical temperature of paraffinic-naphthenic base oils exhibits viscosity-dependence; 2) so-called chain-matching between base oil and oiliness agent has some effect on the critical temperature besides molecular weight of the agent.
社団法人日本機械学会の論文
2005-03-18